The following information is obtained from two independent samples selected from two populations. nį = 117,x1 = 23.4, o1 = 5.6 n2 = 168, 32 = 26.0, o2 = 5.7 a. What is the point estimate of 41 – H2?...

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Extracted text: The following information is obtained from two independent samples selected from two populations. nį = 117,x1 = 23.4, o1 = 5.6 n2 = 168, 32 = 26.0, o2 = 5.7 a. What is the point estimate of 41 – H2? The point estimate for 41 – 42 is -2.6 b. Determine the 95% confidence interval for u1 – 42, and find the margin of error for this estimate. Round your answers to two decimal places. The 95% confidence interval for u1 – 42 is from i to i , with the margin of error i|